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harkovskaia [24]
3 years ago
12

I will mark you brainliest and give 50 points if u help and pls I want the answer to both a and b if u give random answers witho

ut steps i will report u.
:'( pls help me fast tho​

Mathematics
2 answers:
shusha [124]3 years ago
4 0

Answer:

5a. 4w+24≤100

5b. Dimensions=31ft x 19 ft

      Area = 589ft²

Step-by-step explanation:

l=w+12

p=2l+2w

p=2(w+12)+2w

p=2w+24+2w

p=4w+24

The farmer has 100ft of fencing, so maximum that the perimeter (p) can be is 100, meaning (4w+24) has to be less than or equal to 100:

4w+24≤100

For the largest possible perimeter, all 100 of fencing will be used, so allow 100 to be equal to 4w+24)

100=4w+24

4w=76

w=19ft

l=w+12

l=19+12

l=31ft

The dimensions are 31ft x 19ft.

Area=lw

=31*19

=589ft²

Lubov Fominskaja [6]3 years ago
3 0

Answer:

5a. 4w+24≤100

5b. Dimensions=31ft x 19 ft

     Area = 589ft²

Step-by-step explanation:

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The temperature, HH, in degrees Celsius, of a cup of coffee placed on the kitchen counter is given by H=f(t)H=f(t), where tt is
hjlf

Answer:

A) f'(t) is negative

B) degc/min

c ) At 20 minutes after the coffee was put on the counter its temperature is  56degc   and will decrease by about  1.125   in the next 45 seconds

Step-by-step explanation:

A ) f'(t)  is Negative because as the cup of coffee is placed on the counter there is loss of heat from the cup of coffee to the surrounding as t increases hence f'(t) is negative

B ) The units of  f'(20) = degc/min

C)  At ║f'(20)║ = 1.5 and f'(20) = 56

  ║f'(20)║ = 1.5 represents the rate of change of temp every 20 minutes = 1.5

  therefore after 45 seconds = 3/4 mins. change in temp = (3/4 * 1.5) = 1.125

At 20 minutes after the coffee was put on the counter its temperature is  56degc   and will decrease by about  1.125   in the next 45 seconds

3 0
3 years ago
Simplify the expression. -3x + 6 + -4x + 2
irina [24]

Answer:

-x +8

Step-by-step explanation:

3x + 6 + -4x + 2

Combine like terms

3x-4x +6+2

-x +8

4 0
3 years ago
ANSWER NOW FOR A LOT OF POINTS!
sleet_krkn [62]
Answer: x>2
Explanation:
4x- 2>6
4x>8
x> 2
HOPE IT HELPS!!!:):)
3 0
3 years ago
The function h(x) is given below.
mafiozo [28]

Answer:

<em>2. </em><em>{(-5, 3), (-7, 5), (-9, 6), (-12, 10), (-16, 12)}</em>

Step-by-step explanation:

If f is an invertible function with domain X and range Y, then its inverse f^{-1} has domain Y and range X.

Domain of h(x) = {3, 5, 6, 10, 12}

Range of h(x)   = {-5, -7, -9, -12, -16}

So,

Domain of h^{-1}(x) = {-5, -7, -9, -12, -16}

Range of h^{-1}(x)   = {3, 5, 6, 10, 12}

Hence, h^{-1}(x) will be,

{(-5, 3), (-7, 5), (-9, 6), (-12, 10), (-16, 12)}

3 0
3 years ago
Read 2 more answers
(9b−1)(9b+1) Me pueden ayudarme con esta otra pregunta Please.
mrs_skeptik [129]

Answer:

Using identify (a+b)(a-b) =a²-b²

Ur answer is (9b-1)(9b+1) =81b²-1

8 0
3 years ago
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